OpenZeppelin

OpenZeppelin

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Explore Popular Repositories

openzeppelin-contracts: solidity library for secure smart contract development on Ethereum.
openzeppelin-contracts-upgradeable: upgradeable variant of OpenZeppelin Contracts.
openzeppelin-community-contracts: solidity library of smart contracts from the OpenZeppelin Community.
cairo-contracts: cairo library for secure smart contract development on Starknet.
rust-contracts-stylus: rust library for secure smart contract development for Arbitrum Stylus.
uniswap-hooks: solidity library for secure and modular Uniswap hooks.
stellar-contracts: sorobon contracts library for Stellar.
confidential-contracts: experimental library for developing on the Zama fhEVM.
compact-contracts: compact contracts library for building on Midnight.
polkadot-runtime-templates: runtime templates for Polkadot parachains.
Ethernaut: interactive wargame that turns you into a Solidity security expert.
Contracts Wizard: instantly generate boilerplate contracts to bootstrap your next dApp.

OpenZeppelin Tools

Relayer: Infrastructure for relaying transactions on EVM and Non-EVM networks.
Monitor: Infrastructure tool for monitoring blockchain events and transactions.
UI Builder: Open source tool for creating UI forms for contracts.

Getting Started & Resources

Documentation: learn how to integrate our libraries and tools into your project.
Forum: ask questions, share insights, and get help from our community.
Security Center: all the security details you need to know about OpenZeppelin Contracts
Dune Dashboard: real-time metrics and usage data for OpenZeppelin Contracts across various chains.

Stay Connected

Telegram: Join our community of developers and stay connected.
X: Follow us for the latest announcements and updates.
Blog: Dive deeper into our latest articles, security best practices, and community updates.
Careers: Want to buld and secure open-source tools and protocols that protect the open economy? We’re hiring!

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OpenZeppelin Contracts is a library for secure smart contract development.

Solidity 27k 12.4k
Upgradeable variant of OpenZeppelin Contracts, meant for use in upgradeable contracts.

JavaScript 1.2k 509
Plugins for Hardhat and Foundry to deploy and manage upgradeable contracts on Ethereum.

TypeScript 649 282
Web3/Solidity based wargame

Solidity 2.3k 780
OpenZeppelin Contracts written in Cairo for Starknet, a decentralized ZK Rollup

Rust 910 396
A library for secure smart contract development written in Rust

Rust 147 78

Repositories

Showing 10 of 175 repositories

OpenZeppelin/ethernaut-leaderboard’s past year of commit activity

JavaScript
14
MIT
12 2 4
Updated Mar 5, 2026
openzeppelin-upgrades Public
Plugins for Hardhat and Foundry to deploy and manage upgradeable contracts on Ethereum.

OpenZeppelin/openzeppelin-upgrades’s past year of commit activity
OpenZeppelin/openzeppelin-sui-marketplace’s past year of commit activity

TypeScript
2
MIT 0
4 1
Updated Mar 5, 2026
OpenZeppelin/openzeppelin-contracts’s past year of commit activity
OpenZeppelin/openzeppelin-confidential-contracts’s past year of commit activity

Solidity
145
MIT
39 34 10
Updated Mar 5, 2026
contracts-wizard Public
Interactive smart contract generator based on OpenZeppelin Contracts.

OpenZeppelin/contracts-wizard’s past year of commit activity
contracts-sui Public
OpenZeppelin's secure and reusable contracts for the Sui Move ecosystem.

OpenZeppelin/contracts-sui’s past year of commit activity

Move
28
MIT
6 68 7
Updated Mar 5, 2026
OpenZeppelin/openzeppelin-contracts-upgradeable’s past year of commit activity
OpenZeppelin/private-state-manager’s past year of commit activity
openzeppelin-skills Public
Agent skills for secure smart contract development with OpenZeppelin Contracts libraries

OpenZeppelin/openzeppelin-skills’s past year of commit activity

0 AGPL-3.0 0
0 0
Updated Mar 4, 2026